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Elementary Number Theory Problems. Part XVIII Cover

Elementary Number Theory Problems. Part XVIII

By: Adam Grabowski  
Open Access
|Dec 2025

Abstract

In this paper another seven problems from Wacław Sierpiński’s book “250 Problems in Elementary Number Theory” are formalized, using the Mizar formalism, namely: 53, 61, 81, 90, 100, 156, and 167.

DOI: https://doi.org/10.2478/forma-2025-0017 | Journal eISSN: 1898-9934 | Journal ISSN: 1426-2630
Language: English
Page range: 217 - 229
Submitted on: Jun 12, 2025
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Accepted on: Dec 21, 2025
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Published on: Dec 31, 2025
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2025 Adam Grabowski, published by University of Białystok
This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 License.